BEI Industrial Encoders(IED) is an operation of Custom Sensors & Technologies(CST). IED supplies absolute encoders, incremental encoders, linear encoders, electromechanical motion control systems, and components for facto......BEI Industrial Encoders(IED) is an operation of Custom Sensors & Technologies(CST). IED supplies absolute encoders, incremental encoders, linear encoders, electromechanical motion control systems, and components for factory automation, speed and position control, automotive and medical equipment. IED specializes in optical rotary shaft angle encoders specifically designed for harsh industrial environments. For more technical engineering information, see the Optical Encoder Design Guide and the BEI Optical Encoder Glossary. CST is a business unit of Schneider Electric and provides sensors, controls and actuation products to the industrial, transportation, and military and aerospace markets. Schneider Electric is the worlds power and control specialist. Through its world-class brands, Merlin Gerin, Square D and Telemecanique, Schneider Electric anticipates and satisfies its customers’ requirements in the residential, building, industry and energy and infrastructure markets.